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c. F. STREET & N, M. L OWER. DISTRIBUTER FOR MECHANICAL STOKERS.

APPLICATION FILED JAN.I2,1912- Patented Aug. 22, 1916.

3 SHEETS-SHEET 1- mm ll A NQN a ntow m H a m U C. F. STREET & N. M. LOWER. DISTRIBUTER FOR MECHANICAL STOK ERS.

APPLICATION FILED JAN. 12, NHL

Patented Aug. 22, 1916.

3 SHEETS-SHEET 2.

I M I n C; F. STREET & N. M. LOWER. DISTRIBUTER FOR MECHANICAL STOKERS.

APPLICATION FILED JAN-2,1912.-

Patented Aug. 22, 1916,

3 SHEETS-SHEET 3.

I. ang e to 5 W W ED fiTATEfl P I.

CLEMENT F. STREET AND NATHAN M. LOWER, SGHENECTADY, NEW YORK, ASSIGN- ORS TO THE LOCOMOTIVE STOKER COMPANY, OF WILMERDING, PENNSYLVANIA, A

CORPORATION OF PENNSYLVANIA.

DISTRIBUTER FOR MECHANICAL STOKERS.

Specification of Letters Patent.

Patented Aug. 22, iaie.

Application filed January 12, 1912. Serial No. 670,835.

This invention relates to mechanical stokers, and more particularly to the construction of distributers adapted to be operated by a fluid pressure blast or jet for delivering and spreading the fuel over the area of the furnace grate.

This improvement is particularly designed for use in connection with mechanical stokers for locomotive boilers, such as shown and described in our prior application Ser. No. 652,462, filed October 2, 1911, and one of the objects of our present improvement is to provide a detachable distributer which may be inserted from the inside of the boiler furnace, and having wide flaring wings upon the inside of the furnace for more effectually and evenly distributing the fuel over the r grate.

Another object is to provide an improved form; of distributer whereby the blast is made more effective, particularly for handling finely divided lump fuel.

In the accompanying drawings: Figure 1 is a vertical longitudinal section of one form of our improved distributer; Fig. 2, an outside end view of the same; Fig. 3, an inside end view; Fig. 4, a plan, the boiler shell being shown in' section; Fig. 5, aside elevation showing a modification, a part being indicated in vertical section; Fig. 6, a horizontal section of the same; Fig. 7, an end view of the modification shown in Figs. 5 and 6; and Fig. 8, a transverse section taken on the line 88 of Fig. 5.

a As shown in the drawings, the fuel is delivered by pipe, 20 to the elbow, 20, of the distributer, which is provided with air inlet, 27, and the steam or other fluid pressure connection, 28, for the blast, as set forth in our prior appllcation above referred to.

According to our present construction, the distributer device is formed in detachable parts, the elbow part, 20, being located at side of the fire box of the boiler through the opening made for this purpose in the front leg, 21, of the boiler, and then fitted within the cylindrical flange, 30, of the elbow, 20, tOWhlCh it may be detachably fastened in any COIIVGIIIGIIt manner, as by means of connectlng plate, 26, having a rivet or projection, 22, adapted to extend through openings in the flange, 30, and the distributer, 20, and

- a bolt, 29, for securing the plate to the elbow,

20. Thedistributer may then be readily detached by loosening the nut of the bolt, and taking off the connecting plate. The tubular shank of the distributer thoroughly protects the metal of the boiler shell around the fuel opening.

With this improved means for attaching the distributer, the inside end or hood may be flared out much wider than the opening through the boiler shell and thereby operate tion of the grate, the inside end or hood of the distributer is formed with widely flaring curved wings, 23, extending over and down-' ward, the lower end or lip portion,25, of

which projects below 'the full discharge mouth, and is provided with concave and deflecting surfaces adapted to scatter thefuel over'the middle and rear portions of the grate. The inclination of the deflecting surfaces may be made to suit different conditions, as to fuel and equipment. The bottom portion of the distributer may be made thicker, as at 24, thus forming an upwardly inclined surface for deflecting the fuel over into the curved wing portions. A central rib, 32, divides the wing portions and may have a broad edge forming a deflecting surface for diverting some fuel back to the rear portion of the grate.

In order that the fluid pressure blast may operate more efliciently in handling fuel, particularly where finely divided lump fuel is employed, the lower portion of the elbow, 20*, and the tubular shank of the distributer may be made oval or V shaped in cross section, as shown in Figs. 5 to 8 of the drawings. In this way the walls of the distributer shank are brought closer to the blast noz' zle, and form anarrow trough through ribs, 31, for the purpose of fitting snugly within the cylindrical flange of the elbow, 20, and the opening through the boiler shell.

When a distributer becomes burned out due to the great heat of the furnace to which they are subjected, it may be readily detached and a new one inserted from the inside of the fire box.

Having now described our invention, what we claim as new, and desire to secure by Letters Patent, is:

I.' Ina mechanical stoker, the combination with a furnace wall having an opening, of a fuel distributer comprising an elbow outside the furnace wall provided with fuel and fluid pressure connections, and having a flanged opening, a tubular shank extending through said opening and detachably connected to said flange, and a flaring distributing hood of greater width than said opening formed integrally upon the end of the shank 7 within the firebox.

2. In a mechanical stoker, the combination 0 with a furnace wall having an opening, of a fuel distributer comprising an elbow outside said wall and provided with fuel and fluid pressure connections, a distributing hood inside said wall and having an integral tubu lar shank extending through said opening,

and detachable means connecting the shank with said elbow, said hood having flaring wing portions extendingbeyond and curved over and downward below the fuel discharge end of the shank portion.

3. In a mechanical stoker, the combination with a furnace wall having a circular opening, of a fuel distributer having a tubular portion of V shaped section extending through said opening and provided with segmental ribs fitting within said opening, and a fluid nozzle discharging longitudinally through said tubular portion adjacent to the bottom thereof.

4. In a mechanical Stoker, a fuel distribour hands.

CLEMENT F. STREET. NATHAN M.-LOWER.

Witnesses:

a L. E. OSBORNE,

' CHAS. F. GERNERT. 

